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better thread matching for dsns

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keep track of whether a message is a dsn, and match dsn's against their sent
message by ignoring the message subject.
This commit is contained in:
Mechiel Lukkien
2024-03-04 16:40:27 +01:00
parent f6497b1aaf
commit 13923e4b7b
9 changed files with 39 additions and 13 deletions
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16
store/threads.go
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@ -58,7 +58,7 @@ func assignThread(log mlog.Log, tx *bstore.Tx, m *Message, part *message.Part) e
if messageID == m.MessageID {
continue
}
tm, _, err := lookupThreadMessage(tx, m.ID, messageID, m.SubjectBase)
tm, _, err := lookupThreadMessage(tx, m.ID, messageID, m.SubjectBase, m.DSN)
if err != nil {
return fmt.Errorf("looking up thread message for new message: %v", err)
} else if tm != nil {
@ -302,7 +302,7 @@ func (a *Account) AssignThreads(ctx context.Context, log mlog.Log, txOpt *bstore
if messageID == m.MessageID {
continue
}
tm, exists, err := lookupThreadMessage(tx, m.ID, messageID, m.SubjectBase)
tm, exists, err := lookupThreadMessage(tx, m.ID, messageID, m.SubjectBase, m.DSN)
if err != nil {
return false, fmt.Errorf("lookup up thread by message-id %s for message id %d: %w", messageID, m.ID, err)
} else if tm != nil {
@ -485,7 +485,7 @@ func (a *Account) AssignThreads(ctx context.Context, log mlog.Log, txOpt *bstore
return nil
}
// Use multiple worker goroutines to read parse headers from on-disk messages.
// Use multiple worker goroutines to parse headers from on-disk messages.
procs := runtime.GOMAXPROCS(0)
wq := moxio.NewWorkQueue[Message, threadPrep](2*procs, 4*procs, prepareMessages, processMessage)
@ -674,16 +674,18 @@ func (a *Account) AssignThreads(ctx context.Context, log mlog.Log, txOpt *bstore
return nil
}
// lookupThreadMessage tries to find the parent message with messageID that must
// have a matching subjectBase.
// lookupThreadMessage tries to find the parent message with messageID, that must
// have a matching subjectBase (unless it is a DSN).
//
// If the message isn't present (with a valid thread id), a nil message and nil
// error is returned. The bool return value indicates if a message with the
// message-id exists at all.
func lookupThreadMessage(tx *bstore.Tx, mID int64, messageID, subjectBase string) (*Message, bool, error) {
func lookupThreadMessage(tx *bstore.Tx, mID int64, messageID, subjectBase string, isDSN bool) (*Message, bool, error) {
q := bstore.QueryTx[Message](tx)
q.FilterNonzero(Message{MessageID: messageID})
q.FilterEqual("SubjectBase", subjectBase)
if !isDSN {
q.FilterEqual("SubjectBase", subjectBase)
}
q.FilterEqual("Expunged", false)
q.FilterNotEqual("ID", mID)
q.SortAsc("ID")